pronghorn vs gazelle

", indigenous people of the Northwest Plateau, Lava Lake Institute for Science and Conservation, "Pronghorns - Survivors of the American Savanna", "Inferring the mammal tree: Species-level sets of phylogenies for questions in ecology, evolution, and conservation", "About ASM | American Society of Mammalogists", "Malpai Cooperative Fence Project - Pronghorn 4th Quarter 2012", "Pronghorn Antelope Migration Route: 160 Miles Plus : Discovery News", "Pronghorn migration circuit found in Idaho - NatGeo News Watch", "Pronghorn females choose vigorous mates", Courtship in the pronghorn (Antilocapra americana), New Long Distance Migration Route for Pronghorn Found in Idaho by WCS and Lava Lake Institute,, Articles with dead external links from January 2018, Articles with permanently dead external links, Wikipedia articles incorporating a citation from the New International Encyclopedia, Taxonbars using multiple manual Wikidata items, Creative Commons Attribution-ShareAlike License, This page was last edited on 24 September 2020, at 19:25. Contrairement à celles des antilopes, ces cornes ne sont pas creuses. Le cou porte une courte crinière noire et deux bandes blanches sur la partie inférieure. Their horns are long, slightly curved backwards, wrinkled, sharply pointed, and thick at the bases. Cougars, wolves, coyotes, and bobcats are major predators of pronghorns. Gazelles are a genus of antelope group and antelopes belong to the bovidae family. [27] Some female bands share the same summer range, and bachelor male bands form between spring and fall. No major range-wide threats exist, although localized declines are taking place, particularly to the Sonoran pronghorn, mainly as a result of livestock grazing, the construction of roads, fences, and other barriers that prevent access to historical habitat, illegal hunting, insufficient forage and water, and lack of recruitment. Selon de nombreuses sources, la durée de vie d'une gazelle varie entre 10 et 12 ans à l'état sauvage et 15 ans en captivité. Here is a list of all living gazelle species: In the genus Gazella: - Mountain Gazelle, Gazella gazella - Neumann's Gazelle, G. erlangeri - Speke's Gazelle, G. spekei - Dorcas Gazelle, G. dorcas - Chinkara/Indian Gazelle, G. bennettii - Cuvier's Gazelle, G. cuvieri - Rhim Gazelle, G. leptoceros - Goitered Gazelle, G. subgutturosa Genus Eudorcas: - Mongalla Gazelle, Eudorcas albonotata - Thomson's Gazelle, E. thomsoni - Red-fronted Gazelle, E. rufifrons Genus Nanger: - Dama Gazelle, Nanger dama - Grant's Gazelle, N. granti - Soemmerring's Gazelle, N. soemmerringii There are also a few species of gazelle that you might see mentioned that have gone extinct within the past couple of hundred years: - Arabian Gazelle, Gazella arabica (known from a single specimen from 1825) - Red Gazelle, Eudorcas rufina (last seen pre-1894) - Queen of Sheba's Gazelle, Gazella bilkis (last seen in 1951) - Saudi Gazelle, Gazella saudiya (declared extinct in 2008). Plus vieux, les faons se réunissent en petits groupes, les contacts avec leurs mères sont toujours très limités. Terms of Use and Privacy Policy: Legal. [6] University of Idaho zoologist John Byers has suggested the pronghorn evolved its running ability to escape from now-extinct predators such as the American cheetah, since its speed greatly exceeds that of all extant North American predators. Les gazelles sont de petits animaux à corps long mais à cornes de la famille des bovidés. The difference in size can easily be compared if you take a Thompson gazelle (which weighs in at around 30kg) and an eland which can weigh a whopping 950kg if not more. [21] Other subspecies include the Mexican pronghorn (A. a. mexicana), the Oregon pronghorn (A. a. oregona), and the critically endangered Baja California pronghorn (A. a. peninsularis). About 2900 acres of land were jointly purchased by the two organizations and subsequently turned over to the Biological Survey as a pronghorn refuge. Généralement, la portée compte donc un à deux individus. [36] Fawns interact with their mothers for 20–25 minutes a day; this continues even when the fawn joins a nursery. [36] Females usually nurse the young about three times a day. Healthy pronghorn populations tend to stay within 5.0–6.5 km (3.1–4.0 mi) of a water source. Gazelle is a type of antelope. The horns on a gazelle as with other antelopes is made of keratin as well as other proteins. [20] In one study, forbs comprised 62% of their diet, shrubs 23%, and grasses 15%,[20] while in another, cacti comprised 40%, grass 22%, forbs 20%, and shrubs 18%. Additionally, pronghorn hooves have two long, cushioned, pointed toes which help absorb shock when running at high speeds. Les mâles marquent et défendent un territoire de début mars jusqu'à la fin du rut de 0,23 à 4,34 km2, les domaines vitaux des femelles pouvant atteindre 6,35 à 10,5 km2. Still have questions? Where to travel despite Covid-19 (Corona): Social distancing on safari in Tanzania, Covid-19 (Coronavirus): Impact on nature conservation in Tanzania. Différence entre la gazelle et l'antilope, Différence entre la synchondrose et la symphyse, Différence entre la relativité générale et la relativité restreinte, Différence entre la planification de carrière et la planification de la relève, Différence entre le condensateur AC et le condensateur DC, Différence entre les vertébrés et les chordés, Différence entre la méthodologie Waterfall et Agile. • La gazelle est plus petite que toutes les antilopes. One note is they are all Artiodactyls - or even-toed unuglates( hoofed animals). [16], The scientific name of the pronghorn is Antilocapra americana. So all gazelles are antelopes (but not all antelopes are gazelles). • Les antilopes en général habitent une gamme d'écosystèmes, y compris les déserts, les environnements froids et autour des zones gorgées d'eau; en revanche, les gazelles ne vivent que dans le désert. Leur rapidité est extrêmement utile pour dépasser leurs prédateurs. [36] In these systems, territorial males have access to better resources than bachelor males. Secondly, in most species of gazelles both male and female animals have horns. For this reason, the Arizona Antelope Foundation and others are in the process of removing the bottom barbed wire from the fences, and/or installing a barbless bottom wire. They described the animal, which they referred to as the "Antelope" or the "Goat", as follows:[19]. Le Antilocapra americana est polygame et rassemble un harem de 2 à 15 femelles[5]. Étant donné que la gazelle fait partie des espèces d'antilopes, leur spécialité doit être bien comprise. The horns on a gazelle as with other antelopes is made of keratin as well as other proteins. [20] Males are weaned 2–3 weeks earlier than females. * 2002 , National Research Council, Ecological Dynamics on Yellowstone's Northern Range , unnumbered page, If historical records are accurate, the current population of about 250 pronghorn in the northern range is less than 15% of that in the early 1900s (YNP 1997) (Figure 4–7). Cependant, il y avait eu quelques gazelles récemment éteintes, notamment la gazelle rouge, la gazelle arabe et la gazelle saoudienne. In fact, of the 91 antelopes and gazelle species in the world, the African continent is home to 72 of them. Il y a 13 espèces de gazelles décrites sous trois genres, mais il est toujours en discussion parmi les taxonomistes sur le nombre d'espèces et de genres. The coat is mostly brown in colour with white or pale bellies and a dark and thick lateral stripe. Les femelles s'accouplent plus souvent avec les mâles des meilleurs territoires (c'est-à-dire, où le fourrage est de meilleure qualité et le sol plus riche), qui sont par conséquent dominants, et elles peuvent retourner toute leur vie s'accoupler sur le même territoire. The first guy is right, a gazelle is just one specific type of antelope. Gazelles have different coat colours according to the species as some of them look much like springboks. Clark was the first European to kill a pronghorn, and described his experience as follows:[18]. All the true antelopes are native to Africa and Asia. Les pronghorns mâles pèsent entre 41 et 64 kg, les femelles entre 34 et 48 kg[4]. Get your answers by asking now. Leurs cornes sont longues, légèrement recourbées vers l'arrière, ridées, pointues et épaisses à la base. Ainsi, quatre œufs peuvent être fécondés en même temps, et dans ce cas, le sommet de l'embryon se trouvant dans les compartiments supérieurs de la matrice à deux poches se développe et perce la membrane fœtale de l'embryon inférieur, le tuant à l'intérieur de l'utérus. Sa peau est couverte de poils drus cuivrés à brun-rouge sur le dessus. The Giraffoidea are in turn members of the infraorder Pecora, making pronghorns more distant relatives of the Cervidae (deer) and Bovidae (cattle, goats, sheep, antelopes, and gazelles… Antelopes live in a range of habitats; Oryx lives in deserts, Sitatungas live in semi aquatic environments and Saigas live in extremely cold ecosystems. Cet article fournit des informations sur les antilopes en général et la gazelle en particulier.

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